:root {
  --bg-primary: #0a0c10;
  --bg-secondary: #12151c;
  --bg-card: rgba(22, 27, 36, 0.7);
  --bg-card-hover: rgba(28, 35, 48, 0.85);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(225, 48, 108, 0.4);
  
  --ig-purple: #833ab4;
  --ig-pink: #e1306c;
  --ig-orange: #f77737;
  --ig-yellow: #fcaf45;
  --ig-gradient: linear-gradient(135deg, #833ab4 0%, #e1306c 40%, #f77737 80%, #fcaf45 100%);
  --ig-gradient-text: linear-gradient(135deg, #c13584 0%, #e1306c 35%, #f77737 70%, #fcaf45 100%);
  
  --text-main: #f0f3f8;
  --text-muted: #9aa5b8;
  --text-dim: #657185;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;
  
  --shadow-glow: 0 10px 40px -10px rgba(225, 48, 108, 0.3);
  --shadow-card: 0 16px 36px rgba(0, 0, 0, 0.4);
  
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --container-max: 1140px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

section[id] {
  scroll-margin-top: 90px;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  position: relative;
  background-image: 
    radial-gradient(circle at 15% 20%, rgba(131, 58, 180, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 85% 60%, rgba(225, 48, 108, 0.12) 0%, transparent 45%),
    radial-gradient(circle at 50% 90%, rgba(247, 119, 55, 0.1) 0%, transparent 50%);
  background-attachment: fixed;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header & Navigation */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(10, 12, 16, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: var(--text-main);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.brand-icon {
  width: 42px;
  height: 42px;
  border-radius: 11px;
  overflow: hidden;
  box-shadow: 0 4px 14px rgba(225, 48, 108, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.15);
  transition: transform 0.3s ease;
}

.brand:hover .brand-icon {
  transform: scale(1.06) rotate(-2deg);
}

.brand-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.brand-name {
  background: var(--ig-gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--text-main);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-cta {
  display: flex;
  align-items: center;
}

/* Language Switcher */
.lang-switcher {
  display: inline-flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 3px 6px;
  gap: 4px;
  font-size: 0.8rem;
  font-weight: 600;
  user-select: none;
}

.lang-icon {
  width: 14px;
  height: 14px;
  color: var(--text-dim);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.lang-link {
  color: var(--text-dim);
  text-decoration: none;
  padding: 4px 6px;
  border-radius: 4px;
  transition: all 0.2s ease;
  line-height: 1;
}

.lang-link:hover {
  color: var(--text-main);
}

.lang-link.active {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.16);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.lang-divider {
  color: rgba(255, 255, 255, 0.2);
  font-size: 0.72rem;
  user-select: none;
}

.mobile-lang-item {
  display: none;
}

.footer-lang {
  margin-top: 14px;
  display: inline-flex;
}

.mobile-menu-btn {
  display: none;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: all 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--ig-gradient);
  color: #ffffff;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(225, 48, 108, 0.45);
  filter: brightness(1.08);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 9px 18px;
  font-size: 0.88rem;
  border-radius: var(--radius-sm);
}

/* Hero Section */
.hero-section {
  padding: 80px 0 90px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 60px;
  min-width: 0;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
  min-width: 0;
  width: 100%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(225, 48, 108, 0.12);
  border: 1px solid rgba(225, 48, 108, 0.3);
  border-radius: 999px;
  color: #ff7597;
  font-size: 0.84rem;
  font-weight: 600;
  width: fit-content;
  max-width: 100%;
  letter-spacing: 0.02em;
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #e1306c;
  box-shadow: 0 0 10px #e1306c;
  animation: pulseDot 2s infinite ease-in-out;
  flex-shrink: 0;
}

@keyframes pulseDot {
  0%, 100% { opacity: 0.6; transform: scale(0.9); }
  50% { opacity: 1; transform: scale(1.2); }
}

.hero-title {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.03em;
  color: var(--text-main);
  overflow-wrap: break-word;
  word-break: break-word;
}

.hero-title .gradient-text {
  background: var(--ig-gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-muted);
  line-height: 1.68;
  max-width: 580px;
  overflow-wrap: break-word;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 8px;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--text-dim);
  font-size: 0.85rem;
  padding-top: 10px;
  flex-wrap: wrap;
}

.hero-meta span {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Hero Visual / Mockup */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  perspective: 1000px;
  min-width: 0;
  width: 100%;
}

.mockup-card {
  width: 100%;
  max-width: 440px;
  background: linear-gradient(160deg, rgba(28, 33, 46, 0.95), rgba(16, 20, 28, 0.95));
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-xl);
  padding: 28px;
  box-shadow: var(--shadow-card), 0 0 60px -15px rgba(225, 48, 108, 0.25);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(20px);
  box-sizing: border-box;
}

.mockup-card::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 50% 20%, rgba(225, 48, 108, 0.15) 0%, transparent 60%);
  pointer-events: none;
}

.mockup-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
}

.car-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  color: #38ef7d;
  background: rgba(56, 239, 125, 0.1);
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid rgba(56, 239, 125, 0.25);
}

.mockup-cover {
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  margin-bottom: 20px;
}

.mockup-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.mockup-track-info {
  margin-bottom: 18px;
}

.mockup-track-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mockup-track-creator {
  font-size: 0.92rem;
  color: var(--ig-orange);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 3px;
}

/* Audio Waveform Animation */
.waveform-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 38px;
  gap: 4px;
  margin: 16px 0;
  padding: 0 8px;
}

.wave-bar {
  flex: 1;
  background: var(--ig-gradient);
  border-radius: 4px;
  height: 15%;
  animation: wavePulse 1.4s infinite ease-in-out alternate;
}

.wave-bar:nth-child(2) { animation-delay: 0.15s; }
.wave-bar:nth-child(3) { animation-delay: 0.3s; }
.wave-bar:nth-child(4) { animation-delay: 0.45s; }
.wave-bar:nth-child(5) { animation-delay: 0.6s; }
.wave-bar:nth-child(6) { animation-delay: 0.2s; }
.wave-bar:nth-child(7) { animation-delay: 0.35s; }
.wave-bar:nth-child(8) { animation-delay: 0.5s; }
.wave-bar:nth-child(9) { animation-delay: 0.1s; }
.wave-bar:nth-child(10) { animation-delay: 0.4s; }
.wave-bar:nth-child(11) { animation-delay: 0.25s; }
.wave-bar:nth-child(12) { animation-delay: 0.55s; }

@keyframes wavePulse {
  0% { height: 15%; }
  100% { height: 95%; }
}

.progress-bar-wrapper {
  margin-bottom: 20px;
}

.progress-bar-bg {
  width: 100%;
  height: 5px;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 6px;
}

.progress-bar-fill {
  width: 48%;
  height: 100%;
  background: var(--ig-gradient);
  border-radius: 999px;
}

.time-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--text-dim);
}

.player-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
}

.control-btn {
  background: none;
  border: none;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s, color 0.2s;
}

.control-btn:hover {
  transform: scale(1.15);
  color: #ffffff;
}

.play-pause-btn {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: var(--ig-gradient);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(225, 48, 108, 0.45);
}

/* Sections */
section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 60px;
}

.section-badge {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  background: var(--ig-gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.3rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  line-height: 1.25;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.6;
}

/* Feature Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.feature-card:hover {
  transform: translateY(-6px);
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
}

.feature-icon-wrapper {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: rgba(225, 48, 108, 0.12);
  border: 1px solid rgba(225, 48, 108, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  color: #ff6584;
}

.feature-title {
  font-size: 1.22rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-main);
}

.feature-desc {
  color: var(--text-muted);
  font-size: 0.94rem;
  line-height: 1.62;
}

/* How It Works Steps */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  position: relative;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  position: relative;
}

.step-number {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1;
  background: var(--ig-gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  opacity: 0.45;
  margin-bottom: 16px;
}

.step-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.step-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Android Auto Spotlight Banner */
.spotlight-banner {
  background: linear-gradient(135deg, rgba(28, 34, 48, 0.8), rgba(15, 18, 25, 0.95));
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: 56px 48px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 48px;
  position: relative;
  overflow: hidden;
}

.spotlight-banner::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 400px;
  height: 100%;
  background: radial-gradient(circle at 100% 50%, rgba(225, 48, 108, 0.15), transparent 70%);
  pointer-events: none;
}

.spotlight-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 24px 0 32px;
}

.spotlight-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.98rem;
  color: var(--text-muted);
}

.spotlight-list svg {
  flex-shrink: 0;
  margin-top: 3px;
  color: #38ef7d;
}

.spotlight-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 16px;
}

.spotlight-image-box {
  background: rgba(0, 0, 0, 0.4);
  border-radius: var(--radius-lg);
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
  text-align: center;
}

.spotlight-image-box img {
  max-width: 100%;
  border-radius: var(--radius-md);
  display: block;
}

/* FAQ Accordion */
.faq-list {
  max-width: 780px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all 0.25s ease;
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: 20px 24px;
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 1.05rem;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}

.faq-question svg {
  transition: transform 0.3s ease;
  color: var(--ig-orange);
  flex-shrink: 0;
}

.faq-item.active .faq-question svg {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 24px 20px 24px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.65;
  display: none;
}

.faq-item.active .faq-answer {
  display: block;
}

/* CTA Download Banner */
.cta-banner {
  background: linear-gradient(135deg, rgba(131, 58, 180, 0.2) 0%, rgba(225, 48, 108, 0.2) 50%, rgba(247, 119, 55, 0.2) 100%);
  border: 1px solid rgba(225, 48, 108, 0.3);
  border-radius: var(--radius-xl);
  padding: 60px 40px;
  text-align: center;
  box-shadow: 0 20px 60px -15px rgba(225, 48, 108, 0.25);
  position: relative;
  overflow: hidden;
}

.cta-banner h2 {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.cta-banner p {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto 32px;
}

/* Footer */
footer.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 60px 0 36px;
  margin-top: 80px;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-brand p {
  color: var(--text-dim);
  max-width: 380px;
  line-height: 1.6;
}

.footer-col h4 {
  color: var(--text-main);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 18px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-col a:hover {
  color: var(--text-main);
}

.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.84rem;
  color: var(--text-dim);
  flex-wrap: wrap;
  gap: 16px;
}

.footer-disclaimer {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-top: 12px;
  line-height: 1.5;
}

/* Static Policy Page Specific */
.policy-page {
  padding: 60px 0 100px;
}

.policy-header {
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-color);
}

.policy-header h1 {
  font-size: 2.6rem;
  font-weight: 800;
  margin-bottom: 10px;
}

.policy-updated {
  color: var(--text-dim);
  font-size: 0.9rem;
}

.policy-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 44px;
  font-size: 1.02rem;
  line-height: 1.8;
  color: #d1d9e6;
}

.policy-content h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 36px 0 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.policy-content h2:first-of-type {
  margin-top: 0;
}

.policy-content h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-main);
  margin: 24px 0 10px;
}

.policy-content p {
  margin-bottom: 18px;
}

.policy-content ul, .policy-content ol {
  margin: 14px 0 22px 24px;
}

.policy-content li {
  margin-bottom: 8px;
}

.policy-content a {
  color: var(--ig-orange);
  text-decoration: underline;
}

code {
  font-family: monospace;
  word-break: break-all;
  overflow-wrap: anywhere;
}

.badge-permission {
  display: inline-block;
  background: rgba(225, 48, 108, 0.15);
  color: #ff7597;
  padding: 2px 8px;
  border-radius: 4px;
  font-family: monospace;
  font-size: 0.9em;
  word-break: break-all;
  overflow-wrap: anywhere;
  max-width: 100%;
}

/* Responsive */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1fr);
    text-align: center;
    gap: 48px;
  }
  .hero-content {
    align-items: center;
  }
  .hero-actions {
    justify-content: center;
  }
  .hero-meta {
    justify-content: center;
    gap: 12px 20px;
  }
  .features-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .steps-grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .spotlight-banner {
    grid-template-columns: minmax(0, 1fr);
    padding: 36px 28px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-main);
    cursor: pointer;
    padding: 0;
    transition: all 0.2s ease;
    flex-shrink: 0;
  }

  .mobile-menu-btn:hover,
  .mobile-menu-btn:focus-visible {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.25);
    outline: none;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 76px;
    left: 0;
    width: 100%;
    background: rgba(10, 12, 16, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
    flex-direction: column;
    padding: 12px 24px 20px;
    gap: 0;
    z-index: 999;
  }

  .nav-links.nav-open {
    display: flex;
  }

  .nav-links li {
    width: 100%;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .nav-links li:last-child {
    border-bottom: none;
  }

  .nav-links li.mobile-lang-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 4px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .nav-links li.mobile-lang-item .mobile-lang-label {
    font-size: 0.95rem;
    color: var(--text-muted);
    font-weight: 500;
  }

  .nav-links a {
    display: block;
    padding: 14px 4px;
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--text-main);
  }

  .hero-title {
    font-size: 2.3rem;
  }
  .features-grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .policy-content {
    padding: 24px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .brand {
    gap: 10px;
    font-size: 1.2rem;
  }

  .brand-icon {
    width: 36px;
    height: 36px;
  }

  .header-actions {
    gap: 8px;
  }

  .header-cta-btn span {
    display: none;
  }

  .header-cta-btn {
    padding: 9px 12px;
  }

  .hero-title {
    font-size: 2.05rem;
  }

  .hero-description {
    font-size: 1rem;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .mockup-card {
    padding: 18px 14px;
    border-radius: var(--radius-lg);
  }

  .mockup-header {
    gap: 6px;
    margin-bottom: 16px;
    padding-bottom: 12px;
  }

  .car-badge {
    font-size: 0.75rem;
    padding: 4px 8px;
    gap: 6px;
  }

  .mockup-header > span {
    font-size: 0.72rem;
  }

  .mockup-track-title {
    font-size: 1.1rem;
  }

  .spotlight-banner {
    padding: 24px 16px;
  }

  .cta-banner {
    padding: 36px 16px;
  }

  .cta-banner h2 {
    font-size: 1.85rem;
  }

  .policy-header h1 {
    font-size: 2rem;
  }

  .policy-content {
    padding: 18px 14px;
  }
}

/* ==========================================================================
   Accessibility & SEO: Skip Link
   ========================================================================== */
.skip-link {
  position: absolute;
  top: -100px;
  left: 20px;
  background: var(--brand-accent);
  color: #ffffff;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.95rem;
  z-index: 10000;
  text-decoration: none;
  box-shadow: var(--shadow-lg);
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 20px;
  outline: 3px solid #ffffff;
}

/* ==========================================================================
   GEO (Generative Engine Optimization): Quick Facts & At a Glance Block
   ========================================================================== */
.quick-facts-section {
  padding: 30px 0 60px 0;
}

.quick-facts-card {
  background: linear-gradient(135deg, rgba(20, 25, 34, 0.95), rgba(14, 17, 24, 0.98));
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.quick-facts-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--brand-accent), transparent);
}

.quick-facts-header {
  margin-bottom: 30px;
}

.quick-facts-badge {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--brand-accent);
  background: rgba(225, 48, 108, 0.12);
  border: 1px solid rgba(225, 48, 108, 0.25);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 12px;
}

.quick-facts-title {
  font-size: 1.75rem;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.02em;
}

.quick-facts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin: 0;
  padding: 0;
}

.quick-fact-item {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  transition: var(--transition-fast);
}

.quick-fact-item:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(225, 48, 108, 0.3);
  transform: translateY(-2px);
}

.quick-fact-item dt {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--brand-accent);
  margin-bottom: 8px;
}

.quick-fact-item dd {
  font-size: 0.98rem;
  line-height: 1.55;
  color: var(--text-main);
  margin: 0;
}

/* ==========================================================================
   Visual SEO & App Showcase: Screenshot Gallery
   ========================================================================== */
#screenshots {
  padding: 80px 0;
  background: rgba(18, 21, 28, 0.4);
}

.screenshots-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.screenshot-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 16px;
  display: flex;
  flex-direction: column;
  transition: var(--transition-normal);
  text-align: center;
}

.screenshot-card:hover {
  border-color: rgba(225, 48, 108, 0.4);
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg), 0 0 25px rgba(225, 48, 108, 0.15);
}

.screenshot-frame {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #000000;
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(255, 255, 255, 0.08);
  aspect-ratio: 1080 / 2400;
  display: flex;
  align-items: center;
  justify-content: center;
}

.screenshot-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.3s ease;
}

.screenshot-card:hover .screenshot-frame img {
  transform: scale(1.02);
}

.screenshot-caption {
  margin-top: 14px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.4;
}

.screenshot-subcaption {
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-top: 4px;
}

@media (max-width: 992px) {
  .screenshots-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
}

@media (max-width: 580px) {
  .quick-facts-card {
    padding: 24px 18px;
  }
  .quick-facts-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .screenshots-grid {
    grid-template-columns: 1fr;
    max-width: 320px;
    margin: 40px auto 0 auto;
  }
}